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Seasonal and Spatial Variation of Water Quality in Cardiff Bay: Analysis of Historic Data and Future Trend |
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| รหัสดีโอไอ | |
| Creator | 1. Md. Sultanul Islam 2. Md. Nazmul Islam 3. Syeda Marzia |
| Title | Seasonal and Spatial Variation of Water Quality in Cardiff Bay: Analysis of Historic Data and Future Trend |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2564 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 14 |
| Journal No. | 3 |
| Page no. | 23-36 |
| Keyword | Seasonal variation, Spatial distribution, Physico-chemical, Water quality, Freshwater lake, Cardiff Bay |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | The construction of a barrage in Cardiff, United Kingdom at the confluence of the rivers, theTaff and Ely, created a 200 hectares freshwater lake in 2001. The study investigates the water quality trend in Cardiff Bay from January 2001 to September 2005, covering both summer and winter seasons. Eight water quality parameters were analyzed to assess any significant pattern of seasonal variation and spatial distribution. The overall mean value of pH was 8.03; BOD, Ca, Mg, Cl, hardness, TSS were 1.20, 6.05, 3.33, 3.45, 11.72, 2.74 mg/L respectively; and orthophosphate (OP) was 0.08 ?g/L. Mean values were mostly found higher in summer as compared to winter, notably in 2001. In summer, higher values of pH, BOD and hardness were attributed to enhanced photosynthesis leading to production of less carbonic acid, bacterial growth and dissolution of Ca and Mg respectively. The decreasing pattern of Cl and OP was reflected in higher BOD and little possibility of eutrophication. The pattern of TSS was non-uniform and random. The water in Cardiff Bay, compared with relevant data of three artificial lakes, was found to be safe and within the guidelines. A future trend analysis suggested that pH, Mg, Cl and OP would decrease; BOD and TSS would increase marginally; Ca and hardness would remain unchanged in the site. |
